root / trunk / extensions / extGeoreferencing / src / com / iver / cit / gvsig / fmap / layers / FLyrGeoRaster.java @ 3044
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package com.iver.cit.gvsig.fmap.layers; |
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import java.awt.Component; |
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import java.awt.Graphics2D; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.awt.image.BufferedImage; |
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import javax.swing.JOptionPane; |
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import org.cresques.px.Extent; |
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import com.iver.andami.PluginServices; |
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import com.iver.cit.gvsig.StackZoom; |
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import com.iver.cit.gvsig.fmap.DriverException; |
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import com.iver.cit.gvsig.fmap.ViewPort; |
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import com.iver.cit.gvsig.fmap.operations.Cancellable; |
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import com.iver.cit.gvsig.gui.Dialogs.GeoreferencingDialog; |
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/**
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* Clase de capa raster georeferenciada.
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*
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* @author Nacho Brodin (brodin_ign@gva.es)
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*/
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public class FLyrGeoRaster extends FLyrRaster{ |
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private Extent assignExtent = null; |
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private StackZoom zoom = new StackZoom(); |
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private FLyrPoints lyrPoint = null; |
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private double widthPxImg, heightPxImg; |
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/**
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* Dialogo de georreferenciaci?n asociado a la capa.
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*/
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private GeoreferencingDialog geoDialog = null; |
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/**
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* Funci?n encargada de realizar la transformaci?n para las coordenadas
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* del viewPort que se quiere dibujar. Para esta transformaci?n se tiene
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* en cuenta que la imagen tiene un extent propio y uno asignado por el
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* usuario por lo que habr? que transformar las coordenadas que solicita
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* el usuario en coordenadas de la imagen.
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* @param vp ViewPort solicitado por el usuario.
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* @return ViewPort transformado a coordenadas de la imagen.
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*/
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private ViewPort toImageCoord(ViewPort vp) throws DriverException{ |
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if(this.assignExtent == null) |
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return vp;
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//Para la transformaci?n trasladamos virtualmente los extents, el real de la imagen
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// y el asignado al centro del eje de coordenadas. Despu?s trasladamos el viewPort
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//(vpTrasExtent) y con las proporciones de los 2 extents hallamos en ancho, alto y
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//coordenada de inicio del viewport. Todo esto equivale a trasladar y escalar el
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//viewPort para hallar el nuevo.
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Rectangle2D userExtent = new Rectangle2D.Double(assignExtent.minX(), |
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assignExtent.minY(), |
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assignExtent.width(), |
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assignExtent.height()); |
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Rectangle2D imageExtent = super.getFullExtent(); |
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Rectangle2D vpExtent = vp.getExtent();
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double vpMinX = 0D, vpMinY = 0D; |
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//Traslaci?n del viewport estando el extent posicionado en el 0,0
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Rectangle2D vpTrasExtent = new Rectangle2D.Double( vpExtent.getMinX() - userExtent.getMinX(), |
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vpExtent.getMinY() - userExtent.getMinY(), |
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vpExtent.getWidth(), |
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vpExtent.getHeight()); |
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double x = 0D, y = 0D, width = 0D, height = 0D; |
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//Escalado de la anchura y altura. No hace falta traslaci?n
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width = (vpExtent.getWidth() * imageExtent.getWidth())/assignExtent.width(); |
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height = (vpExtent.getHeight() * imageExtent.getHeight())/assignExtent.height(); |
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//Escalado del min del viewport para hallar el min del nuevo
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x = (vpTrasExtent.getMinX() * imageExtent.getWidth())/assignExtent.width(); |
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y = (vpTrasExtent.getMinY() * imageExtent.getHeight())/assignExtent.height(); |
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//Traslaci?n
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x += imageExtent.getMinX(); |
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y += imageExtent.getMinY(); |
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Rectangle2D newExtent = new Rectangle2D.Double(x, y, width, height); |
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ViewPort viewPort = new ViewPort(vp.getProjection());
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viewPort.setExtent(newExtent); |
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viewPort.setImageSize(vp.getImageSize()); |
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viewPort.setScale(); |
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return viewPort;
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} |
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/**
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* Dibujado de la capa de raster georeferenciado aplicando la
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* transformaci?n del viewPort.
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*/
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public void draw(BufferedImage image, Graphics2D g, ViewPort vp, |
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Cancellable cancel,double scale) throws DriverException { |
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super.draw(image, g, this.toImageCoord(vp), cancel, scale); |
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} |
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/**
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* Impresi?n de la capa de raster georeferenciado aplicando la
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* transformaci?n del viewPort.
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*/
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public void print(Graphics2D g, ViewPort viewPort, Cancellable cancel, |
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double scale)throws DriverException { |
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super.print(g, this.toImageCoord(viewPort), cancel, scale); |
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} |
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/**
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* Impresi?n de la capa de raster georeferenciado aplicando la
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* transformaci?n del viewPort.
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*/
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public void _print(Graphics2D g, ViewPort viewPort, Cancellable cancel,double scale) |
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throws DriverException {
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_print(g, this.toImageCoord(viewPort), cancel, scale);
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} |
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/**
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* Obtiene el extent de la capa
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* @return extent en Rectangle2D.
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*/
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public Rectangle2D getFullExtent()throws DriverException { |
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if(assignExtent == null) |
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return super.getFullExtent(); |
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return assignExtent.toRectangle2D();
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} |
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/**
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* Obtiene el extent de la capa
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* @return extent de la capa
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*/
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public Extent getAssignExtent(){
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try{
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if(assignExtent == null) |
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return new Extent( super.getFullExtent().getMinX(), |
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super.getFullExtent().getMinY(),
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super.getFullExtent().getMaxX(),
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super.getFullExtent().getMaxY());
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}catch(DriverException ex){}
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return assignExtent;
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} |
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/**
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* Obtiene el valor del pixel del Image en la posici?n x,y
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* @param x Posici?n x
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* @param y Posici?n y
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* @return valor de pixel
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*/
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/*public int[] getPixel(double wcx, double wcy){
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return ((RasterFileAdapter) source).getPixel(wcx, wcy);
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}*/
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/**
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* Obtiene la coordenada X m?xima
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*/
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public double getMaxX(){ |
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if(assignExtent == null) |
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return super.getMaxX(); |
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return assignExtent.maxX();
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} |
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/**
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* Obtiene la coordenada Y m?xima
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*/
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public double getMaxY(){ |
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if(assignExtent == null) |
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return super.getMaxY(); |
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return assignExtent.maxY();
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} |
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/**
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* Obtiene la coordenada X m?nima
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*/
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public double getMinX(){ |
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if(assignExtent == null) |
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return super.getMinX(); |
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return assignExtent.minX();
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} |
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/**
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* Obtiene la coordenada Y m?nima
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*/
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public double getMinY(){ |
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if(assignExtent == null) |
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return super.getMinY(); |
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return assignExtent.minY();
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} |
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/**
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* Obtiene el alto
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*/
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public double getHeight(){ |
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if(assignExtent == null) |
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return super.getHeight(); |
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return assignExtent.height();
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} |
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/**
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* Obtiene el ancho
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*/
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public double getWidth(){ |
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if(assignExtent == null) |
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return super.getWidth(); |
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return assignExtent.width();
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} |
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/**
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* @param assignExtent The assignExtent to set.
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*/
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public void setAssignExtent(Extent assignExtent) { |
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if(assignExtent.getMax().distance(assignExtent.getMin()) > 0){ |
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this.assignExtent = assignExtent;
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zoom.setZoom(assignExtent); |
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} |
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} |
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/**
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* Asigna el ?ltimo extent seleccionado si hay alguno
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*/
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public void setLastExtent(){ |
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Extent e = null;
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e = zoom.getLastZoom(); |
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if(e != null) |
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this.assignExtent = e;
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} |
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/**
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* Obtiene la pila de extents aplicados
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* @return pila de extents
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*/
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public StackZoom getStackZoom(){
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return zoom;
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} |
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/**
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* Transforma un pixel de la imagen cuyas coordenadas son (0..maxWidth, 0..maxHeight)
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* en coordenadas del mundo real a partir del extent asignado a la imagen.
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* @param pixel Pixel de la imagen
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* @return Coordenadas del mundo de ese pixel
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*/
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public Point2D img2World(Point2D pixel){ |
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Point2D p = new Point2D.Double(); |
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double wcWidth = 0.0, wcHeight = 0.0, ptoWCX = 0.0, ptoWCY = 0.0; |
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int pixelImgX = 0, pixelImgY = 0; |
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try{
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wcWidth = getFullExtent().getWidth(); |
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wcHeight = getFullExtent().getHeight(); |
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pixelImgX = (int)((((pixel.getX() * wcWidth) / widthPxImg)) + this.getFullExtent().getMinX()); |
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pixelImgY = (int)((((pixel.getY() * wcHeight) / heightPxImg)) + this.getFullExtent().getMinY()); |
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}catch(DriverException ex){}
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p.setLocation(pixelImgX, pixelImgY); |
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return p;
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} |
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/**
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* Transforma un pixel de la imagen cuyas coordenadas son (0..maxWidth, 0..maxHeight)
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* en coordenadas del mundo real a partir del extent asignado a la imagen.
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* @param x Coordenada X del pixel de la imagen
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* @param y Coordenada Y del pixel de la imagen
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* @return Coordenadas del mundo de ese pixel
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*/
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public Point2D img2World(double x, double y){ |
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Point2D p = new Point2D.Double(); |
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p.setLocation(x, y); |
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return this.img2World(p); |
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} |
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/**
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* Transforma una coordenada del mundo real a un pixel (0..maxWidth, 0..maxHeight)
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* en coordenadas de la imagen a partir del extent asignado a esta.
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* @param wcPoint coordenada del mundo
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* @return Pixel de la imagen
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*/
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public Point2D world2Img(Point2D wcPoint){ |
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//Si el punto cae fuera de la imagen salimos devolviendo null
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while( wcPoint.getX() < this.getMinX() || |
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wcPoint.getX() > this.getMaxX() ||
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wcPoint.getY() < this.getMinY() ||
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wcPoint.getY() > this.getMaxY())
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return null; |
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//Hallamos pixelImg q son las coordenadas en pixeles de la imagen que corresponden
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//con el punto wcPoint
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double wcWidth = 0.0, wcHeight = 0.0, ptoWCX = 0.0, ptoWCY = 0.0; |
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int pixelImgX = 0, pixelImgY = 0; |
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try{
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wcWidth = this.getFullExtent().getWidth();
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wcHeight = this.getFullExtent().getHeight();
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ptoWCX = wcPoint.getX() - this.getFullExtent().getMinX();
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ptoWCY = wcPoint.getY() - this.getFullExtent().getMinY();
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pixelImgX = (int)((ptoWCX * this.getImageWidth()) / wcWidth); |
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pixelImgY = (int)((ptoWCY * this.getImageHeight()) / wcHeight); |
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}catch(DriverException ex){}
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Point2D result = new Point2D.Double(); |
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result.setLocation(pixelImgX, pixelImgY); |
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return result;
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} |
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/**
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* Transforma una coordenada del mundo real a un pixel (0..maxWidth, 0..maxHeight)
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* en coordenadas de la imagen a partir del extent asignado a esta.
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* @param x wcPoint coordenada X del mundo
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* @param y wcPoint coordenada Y del mundo
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* @return Pixel de la imagen
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*/
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public Point2D world2Img(double x, double y){ |
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Point2D p = new Point2D.Double(); |
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p.setLocation(x, y); |
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return this.world2Img(p); |
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} |
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/**
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* Asigna la capa de puntos asociada a la capa Georraster
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* @param lyr Capa de puntos
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*/
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public void setFLyrPoints(FLyrPoints lyr){ |
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this.lyrPoint = lyr;
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} |
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/**
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* Obtiene la capa de puntos asociada a la capa Georraster
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* @return Capa de puntos
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*/
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public FLyrPoints getFLyrPoints(){
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return this.lyrPoint; |
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} |
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/**
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* Asigna la dimensi?n de la imagen de disco en pixeles
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* @param w Ancho
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* @param h Alto
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*/
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public void setImageDimension(double w, double h){ |
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this.widthPxImg = w;
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this.heightPxImg = h;
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} |
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/**
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* Obtiene el ancho de la imagen de disco en pixeles
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* @return
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*/
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public double getImageWidth(){ |
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return this.widthPxImg; |
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} |
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/**
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* Obtiene el alto de la imagen de disco en pixeles
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* @return
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*/
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public double getImageHeight(){ |
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return this.heightPxImg; |
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} |
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/**
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* @return Returns the geoDialog.
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*/
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public GeoreferencingDialog getGeoDialog() {
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return geoDialog;
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} |
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/**
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* @param geoDialog The geoDialog to set.
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*/
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public void setGeoDialog(GeoreferencingDialog geoDialog) { |
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this.geoDialog = geoDialog;
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} |
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} |